<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
  private $id;
  public function getId()
  {
    return $this->id;
  }

  /**
   * Authenticates a user.
   * The example implementation makes sure if the username and password
   * are both 'demo'.
   * In practical applications, this should be changed to authenticate
   * against some persistent user identity storage (e.g. database).
   * @return boolean whether authentication succeeds.
   */
  public function authenticate()
  {

    /* viennp
     $users=array(
         // username => password
         'demo'=>'demo',
         'admin'=>'admin',
     );
    if(!isset($users[$this->username]))
      $this->errorCode=self::ERROR_USERNAME_INVALID;
    else if($users[$this->username]!==$this->password)
      $this->errorCode=self::ERROR_PASSWORD_INVALID;
    else
      $this->errorCode=self::ERROR_NONE;
    return !$this->errorCode;
    */

    $username=strtolower($this->username);
    $user=User::model()->find('LOWER(username)=?',array($username));
    if($user===null)
      $this->errorCode=self::ERROR_USERNAME_INVALID;
    else if(!$user->validatePassword($this->password))
      $this->errorCode=self::ERROR_PASSWORD_INVALID;
    else {
      $this->id=$user->id;
      $this->username=$user->username;
      $this->errorCode=self::ERROR_NONE;
    }


    return $this->errorCode==self::ERROR_NONE;
  }



}